Riddle for threshing-machines.



No. 738,541. PATENTED SEPT. 8, 1903. E. HUBER & J. W. MILLER.

RIDDLE FOR THRESHING MACHINES.

VAPPLIGATION FILED APB.. 15 1902.

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l M {O1/nga UNITED STATES Patented September 8, 1903.

PATENT OFFICE.

EDWARD HUBER AND JACOB W. MILLER, OE MARION, OHIO.

SPECIFICATION forming part of Letters Patent No. 738,541, dated September 8, 1903. Application filed Aprl15, 1902. 'Serial No. 103,034. (No model.)

T0 a/ZZ whom t may concern:

Be it known that we, EDWARD HUBER and JACOB W. MILLER, citizens of the United States, residing at Marion, in the county of Marion and State of Ohio, have invented certain new and useful Improvements in Riddles for Threshing-Machines, of which the following is a specification.

Our invention relates to devices for separating the grain from chait in threshing, and has for one of its objects to provide a device of the character described in which are provided a series of slats secured to a suitable frame and a series of slats alternately with said xed slats and mounted to be swung at such angles as to permit various kinds of grain to be screened, all of said slats being at all times at such angle as to direct the blast of air against the chai, so as to drive it out of the threshing-machine.

Another object of our invention is to provide mechanism for operating the pivoted slats which extend outward to one side of the threshing-machine, so that the slats may be adjusted to any desired angle while the machine is running.

The advantages oi' our invention will more fully appear hereinafter and-by reference to the accompanying drawings, in which-- Figure 1 is a top plan view of our improved riddle; Fig. 2, a bottom plan view, and Fig. 3 a lView in section on the line 3 3 of Fig. 1.

Referring to the drawings, in which similar reference characters indicate corresponding parts throughout the several views, 1, 2, 3, and 4: indicate the four pieces comprising the frame of my device. The side pieces 1 and 2 are grooved at an angle, as shown at 5, and have set therein slats 6, preferably corrugated laterally, yas shown at 7.

8 represents slats secured to rods 9, jour-r 1 is longitudinally grooved, as shown at 10, and the ends of the rods 9 are extended therein and bent downward and protrude from the slot, as shown at 11.

2 represents a rod having holes 13 to receive the ends 11 of the rods 9, said rod 12 being operated by means of a rod 14, mounted to slide on an arm 15, secured to the end piece 3, which is connected to the rod 12 by means of a bell-crank lever 16,.pivoted to the frame of the riddle. The outerend of rod 12 is guided by means of a bolt 17, inserted. through a slot 18 in said rod and the side piece 1, while the outer end of rod 14 is guided by means of a bolt 19, inserted through a slot 2O in said rod and the arm 15. The bolt 19 is loosely mounted in said arm 15 and has a thumb-nut 21 on its screw-threaded end to tighten it when desired to hold the pivoted slats 8 in a fixed position.

It will be readily understood that by moving the rod 14 toward or away from the frame the slats 8 are swung so as to change their inclination and to increase or diminish the space between the edges of slats 8 and slats 6. When the rod 14 is pushed toward the frame, the space is made larger and when pulled away therefrom smaller, so that the riddle is readily accommodated to the amount of grain going through the machine, as well as the different kinds of seed or grain being threshed, such as wheat, oats, barley, and rye, as well as timothy and clover, grass, and other seeds. It will also be readily apparent that by having all the operating mechanism beneath the frame of the riddle 4there is no obstruction oered to the flight of the chat` and less likelihood of the collection of dirt, che., in the joints, as there is in riddles in which the operating mechanism is over the riddle.

Having thus described our invention, what we claim is- 1. In a riddle or screen, impert'orate slats secured obliquely in a suitable frame, slats pivoted in said frame, saidimpertorate slats and pivoted slats being alternately arranged in said frame, and means for operating said pivoted slats7 substantially as shown and described.

2. In a riddle or screen, an open frame having oblique grooves out into the inner face of two of its sides, impert'orate slats secured in said grooves, a rod journaled in said frame between each pair of grooves, a slat secured to each rod, one end of each rod bent downwardly and protruding from a groove in said IOO frame, a rod slidably mounted on said frame having holes to receive said protruding ends of therods, and means to reciprocate said slidable rod, substantially as shown and described.

3. In a riddle or screen, slats secured at an angle in a suitable frame, rods journaled in said frame, one of said rods being secured between each pair of secured slats, slats secured to each rod, a slotted bar slidably mounted on said frame by means of a bolt extending through said frame and slot, said bar having a series of holes therein to receive the ends of said rods, a bell-crank lever pivoted to said ,frame and pivotally connected to said bar, an arm extended over said riddleframe, and a slotted bar slidably mounted on said arm and adapted to be frictionally secured thereto by means of a bolt passing through the slot and arm, said bar being pivotally connected to said bell-crank lever, substantially as shown and described.

4. A riddle or screen comprising a rectangular frame, slats secured in grooves in said frame, rods journaled in said frame having theirends extended intoagroovein one of the side pieces in said frame and bent to protrude from said groove, a slat secured to each rod, a slotted bar slidably mounted on said frame by means of a bolt extended through said frame and slot having holes to receive said protruding ends of said rods, an arin secured t0 said frame, a slotted bar intermittently secured to or slidably mounted on said arm by means of a bolt passing through said slot and arm, and a bell-crank lever pivoted to said frame and pivotally connected to each slidably-mounted bar, substantially as shown and described.

In testimony-whereof We hereto ax our signatures in the presence of two witnesses.

EDWARD HUBER. JACOB W. MILLER. 

